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Spectroscopic properties of the 1.8μm emission of Tm3+/Yb3+ codoped TeO2–ZnO–Bi2O3 glasses with efficient energy transfer
- Source :
-
Journal of Non-Crystalline Solids . Jun2011, Vol. 357 Issue 11-13, p2417-2420. 4p. - Publication Year :
- 2011
-
Abstract
- Abstract: Tm3+-doped and Tm3+/Yb3+-codoped TeO2–ZnO–Bi2O3 (TZB) glasses are prepared by melt-quenching method. The Judd-Ofelt intensity parameters (Ω t t =2, 4, 6), radiative transition rate, and radiative lifetime of Tm3+ are calculated based on the absorption spectra. The 1.8μm emission of the samples is investigated under 980nm laser excitation. The absorption, emission cross-sections, and gain coefficient of Tm3+:3F4 → 3H6 are calculated. The energy transfer processes of Yb3+–Yb3+ and Yb3+–Tm3+ are analyzed, the results show that the Yb3+ ions can transfer their energy to Tm3+ ions with large energy transfer coefficient, and a maximum efficiency of 79%. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00223093
- Volume :
- 357
- Issue :
- 11-13
- Database :
- Academic Search Index
- Journal :
- Journal of Non-Crystalline Solids
- Publication Type :
- Academic Journal
- Accession number :
- 60850048
- Full Text :
- https://doi.org/10.1016/j.jnoncrysol.2010.12.022